feat: add generated scene skill platform hardening

tests/lineloss_xlsx_export_test.rs

@@ -75,8 +75,14 @@ fn export_month_lineloss_produces_valid_xlsx() {
     let mut xml = String::new();
     std::io::Read::read_to_string(&mut sheet, &mut xml).unwrap();
 
-    assert!(xml.contains("供电单位"), "header row should contain 供电单位");
-    assert!(xml.contains("累计供电量"), "header row should contain 累计供电量");
+    assert!(
+        xml.contains("供电单位"),
+        "header row should contain 供电单位"
+    );
+    assert!(
+        xml.contains("累计供电量"),
+        "header row should contain 累计供电量"
+    );
     assert!(xml.contains("城关供电"), "data should contain 城关供电");
     assert!(xml.contains("12345.67"), "data should contain 12345.67");
     assert!(xml.contains("七里河供电"), "data should contain second row");
@@ -99,7 +105,10 @@ fn export_empty_rows_returns_error() {
     let result = export_lineloss_xlsx(&request);
     assert!(result.is_err());
     assert!(
-        result.unwrap_err().to_string().contains("rows must not be empty"),
+        result
+            .unwrap_err()
+            .to_string()
+            .contains("rows must not be empty"),
         "should reject empty rows"
     );
 }